Hi John, I am aware of this location for header tank. my problem is that

it is

inside the cabin, and it's directly above the main landing gear strut. I

am

afraid, crash landing can drive the strut in to the tank. Looks like

small header

tank on the engine side of the fire wall,  is a better solution.

Now you mention it, neither option sounds that good in a crash situation. If
its over the gear the passengers might be sprayed with fuel. If its behind
the firewall the fuel might spray on the exhaust and ignite.  I think I
prefer the transfer pump approach. I assume that a fuel injection system
REQUIRES a return. What volume of fuel return are we talking about here?
Would it be possible to return to one tank and always draw that tank half
way down before switching to the other tank? i.e. a procedural solution.

Charlie Kuss wrote:

John
 Why not use an Andair duplex fuel selector valve? This allows simplified plumbing
of a feed and return line for each main tank. This company makes GREAT products,
of high quality. Most of the RV builders who use F.I. on their engines use this
valve to prevent vapor lock on their Lycomings. See
http://www.andair.co.uk/index.htm for more info
 The best price for these valves is through Van's Aircraft. I suspect that you'll
need to order through an RV builder though.  If you can't purchase from Van's
directly, I can purchase it for you. To download Van's accessory catalog, see
http://www.vansaircraft.com/public/cat-htm.htm.
Charlie Kuss
RV-8 wings
Your EAA chapter treasurer

 
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